Everything is faster opening up other apps and even typing is faster as well. It seem like the old Facebook app took up WAY too much ram.
Also to save photos on the Facebook app. It's the same way as saving photos on safari.
The new Facebook app is awesome. Its fast, it has more features (can leave a conversation from the app don't need to go to a computer anymore), it loads better, in conversations you can see who else has seen the message, etc etc. Much needed upgrade. But only the app feels faster, the rest of my phone feels the same.